Analysis of Advantages and Disadvantages of LED Display Screens

With the innovation and improvement of LED technology, more and more outdoor advertising screens have become smaller and smaller, and have evolved from small to clear. In the LED display industry, the outdoor high-definition outdoor advertising screen is a surface-mounting product. The outdoor surface-mounted LED display uses high-quality light-emitting chips as the core material. The high-quality driver IC is a full-color led display in brightness, grayscale, contrast, High density, viewing angle, stability, color uniformity, color saturation, image edge fineness, smooth video effects, etc. play an extreme advantage of outdoor led advertising screen. With the lamp beads for everyone to analyze the market, the application of several outdoor surface mount lamp beads.

The first lamp bead is SMD2828. In the LED display, the models that can be used are outdoor models such as P5, P6, P6.25 and other outdoor models. The outdoor products are not limited to these three models, and there are outdoor rental screens P6.67. Floor tiles P7.8125 and P8.928, which are representative products for outdoor applications and stage applications. SMD2828's external dimensions are 3.0×3.0×2.4mm. The special waterproof structure design effectively improves the moisture-proof function. In the waterproof potting process, the outdoor surface-mounted special silica gel is used. The thickness of the glue is 1.5mm, which effectively isolates the rainwater from eroding to the PCB line. The board prevents adverse factors such as short circuits.

The second model is SMD3535, the lamp of 3535 is relatively larger than the size of 2828, and the external size is 3.5×3.5×2.8mm. Commonly used outdoor displays include the outdoor surface mount P8 full color screen and the outdoor P10 full color display. Because of the larger size of the lamp, the application in the outdoor HD field is much smaller than the 2828. The 3535 adopts the inner white and black design, and the contrast effect is significantly improved. The waterproof potting process also uses the outdoor surface mount special silica gel and the 1.5mm potting thickness.

The outdoor surface mount P8led display and the P10led display are relatively large. The 3535 lamp bead high lamp bead is used, and the normal glue filling machine can solve the problem. The precision requirements of P5 and P6 and P6.25 in the process are very high. If you don't master the glue technology, it will affect the appearance and consistency of the whole screen.

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